A RIGOROUS KINETIC APPROACH TO MODEL PRIMARY OXIDATIVE STEPS OF PHOTOCATALYTIC DEGRADATIONS

被引:41
作者
MINERO, C
机构
[1] Dept. of Analytical Chemistry, University of Torino, Torino
关键词
D O I
10.1016/0927-0248(94)00234-7
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A kinetic model for the early stages of oxidation of an organic compound over irradiated semiconductors is presented. The model considers only the simpler cases, having the advantage of simplicity and of analytical solutions to the general differential equation. The obtained relationships are able to justify (i) the observed decays of C-i(t) versus time, (ii) the observed dependencies of the measured kinetic constants on initial substrate concentration, (iii) on the catalyst concentration, and (iv) on the light intensity.
引用
收藏
页码:421 / 430
页数:10
相关论文
共 32 条
[1]   PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS TITANIUM-DIOXIDE DISPERSIONS [J].
AUGUGLIARO, V ;
PALMISANO, L ;
SCLAFANI, A ;
MINERO, C ;
PELIZZETTI, E .
TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY, 1988, 16 (02) :89-109
[2]  
BANHEMANN D, 1994, AQUATIC SURFACE PHOT, pCH21
[3]  
BORELLO R, 1989, ENVIRON TOXICOL CHEM, V8, P997, DOI [10.1897/1552-8618(1989)8[997:PDODMI]2.0.CO
[4]  
2, 10.1002/etc.5620081105]
[5]   ADSORPTION AND STRUCTURING PHENOMENA AT SOLID-LIQUID INTERFACE [J].
BROWN, CE ;
EVERETT, DH ;
POWELL, AV ;
THORNE, PE .
FARADAY DISCUSSIONS, 1975, 59 :97-108
[6]   EFFECT OF CHLORINE ON PHOTOCATALYTIC DEGRADATION OF ORGANIC CONTAMINANTS [J].
CARLIN, V ;
MINERO, C ;
PELIZZETTI, E .
ENVIRONMENTAL TECHNOLOGY, 1990, 11 (10) :919-926
[7]   SENSITIZED PHOTO-OXIDATIONS OF DISSOLVED ALCOHOLS IN HOMOGENEOUS AND HETEROGENEOUS SYSTEMS .2. TIO2-SENSITIZED PHOTODEHYDROGENATIONS OF BENZYL ALCOHOL [J].
CUNNINGHAM, J ;
SRIJARANAI, S .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1991, 58 (03) :361-371
[8]   FACTORS INFLUENCING EFFICIENCIES OF TIO2-SENSITIZED PHOTODEGRADATION .1. SUBSTITUTED BENZOIC-ACIDS - DISCREPANCIES WITH DARK-ADSORPTION PARAMETERS [J].
CUNNINGHAM, J ;
ALSAYYED, G .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1990, 86 (23) :3935-3941
[9]   A KINETIC-MODEL DESCRIBING PHOTOCATALYTIC OXIDATION USING ILLUMINATED SEMICONDUCTORS [J].
DAVIS, AP ;
HUANG, CP .
CHEMOSPHERE, 1993, 26 (06) :1119-1135
[10]  
EVERETT DH, 1975, FARADAY DISCUSS CHEM, V59, P9